Metal-furnace.



I. HALL.

METAL FURNACE.

APPLIOATION FILED NOV. 13, 1913.

1,100,827, Patented June 23, 191i COLUMBIA PLANOGRAPH 110.. WASHINGTON, D. c.

ISAIAH HALL, OF BIRMINGHAM, ENGLAND.

METAL-FURNACE.

Specification of Letters Patent.

Application filed November 13, 1913.

Patented June 23, 1914;.

Serial No. 800,863.

To all whom it may concern Be it known that I, ISAIAH HALL, subject of the King of Great Britain, residing at Exchange Buildings, New street, Birmingham, in the county of Warwick, England, have invented a new and useful Metal- Furnace; and I do hereby declare the following to be a full, clear, and exact description of the same.

This invention relates to furnaces for melting metal, more especially such as are used for the melting of used metal, cleansing it and subsequently casting it into ingots; and is particularly adapted for use in the melting of typemetal and subsequently casting it into ingots.

The object of this invention is to provide more convenient means for pouring the metal into ingots, and for cooling and ejecting the same.

In the accompanying drawings forming a part hereof:Figure 1. is a part section perspective View of a furnace made in accordance with my invention. Fig. 2. is a plan of the mold removed from the supporting brackets and Fig. 3. is a section of the same.

In carrying my invention into practice as illustrated upon the accompanying drawings the type metal is passed into the melting pot 1 through a door in the upper portion 2 where it is melted by the gas burner 3, though any other suitable heating apparatus might be employed.

The flow of molten metal to the pouring spout 4 is controlled by means of the valve 5 and beneath the spout the hollow mold 6 is disposed resting by means of the trunnions or pipes 7 upon the brackets 8. These trunnions are hollow and are integral with the body of the mold, and they serve as pipes for conveying cooling water to the hollow interior of the same. The Water is led to the ends of these pipes 7 by means of flexible tubing 9 which is firmly fixed to the same and allowed to twist slightly each time the mold is rotated, thus doing away with the necessity for sliding surfaces in the joints, requiring stufling boxes or other packing, and the attendant possibility of leakage.

Each of the brackets 8 has three depressions upon its upper surface. The middle depression 10 is adapted to receive the pipe 7 and in the other two depressions 11 and 12 the handle 13 upon one bracket and the stop 14 upon the other bracket are adapted to rest alternately.

It will be clear that the stop and handle thus positively prevent the further rotation of the mold each time it is inverted, limiting its angular motion to 180 and moreover the mold may be brought around with considerable force and will be suddenly checked as the stop and handle strike the solid brackets, thus ejecting the ingots automatically, and other means might be employed for this purpose in place of the handle and stop, one upon each side of the mold, as illustrated.

What I claim then is 1. In casting apparatus attached to a metal furnace the combination of brackets having recesses formed on their upper surface; a pivoted reversible hollow mold having recesses upon its upper surface and underside; discharge and delivery pipes for circulating water through the mold; and a stop upon the side of the mold adapted to rest upon the upper surface of the bracket alternately upon either side of the recess wherein the pivot rests, thus positively limiting the motion of the mold to a rotation through 180 alternately in either direction.

2. In casting apparatus attached to a metal furnace the combination of brackets having recesses formed on their upper surface; a hollow mold having recesses upon its upper surface and underside; discharge and delivery pipes for circulating cooling water through the mold, said pipes forming pivots turning with the mold and resting in recesses upon the brackets; and a stop upon the side of the mold adapted to rest upon the upper surface of the bracket alternately upon either side of the recess wherein the pivot rests, thus positively limiting the motlon of the mold to a rotation through 180 alternately in either direction.

3. In casting apparatus attached to a metal furnace the combination of brackets having recesses formed on their upper surface; a hollow mold having recesses upon its upper surface and underside; discharge and delivery pipes for circulating cooling water through the mold, said pipes forming pivots turning with the mold and resting in recesses upon the brackets; and a handle upon the side of the mold for inverting the mold and adapted to strike and to rest in recesses alternately upon either side of the recess wherein the pivot rests, thus positively limiting the motion of the mold to a rotation through 180 degrees alternately in either direction.

4. In casting apparatus attached to a metal furnace the combination of brackets having recesses formed on their upper surface; a hollow mold having recesses upon its upper surface and underside for receiving the molten metal; discharge and delivery pipes for circulating cooling waterthrough the mold; said pipes forming pivots turning with the mold and resting in recesses upon the brackets; flexible piping directly connected to said discharge and delivery pipes; and a handle upon the side of the mold for inverting the mold and adapted to rest upon either side of the recess wherein the pivot rests, thus positively limiting the motion of the mold to a rota tion through 180 degrees alternately in either direction.

In testimony whereof, I have signed my name to this specification in the presence of two subscribing witnesses.

ISAIAH HALL.

WVitnesses HAROLD H. FoRRnsTnR, EVAN S. W. BYRNE.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. 0. 

